Iodide

About: Iodide is a research topic. Over the lifetime, 17796 publications have been published within this topic receiving 300995 citations. The topic is also known as: iodides & iodide salt.

Organic functional group analysis via gas chromatography. II

Abstract: The determination of alkoxyl and alkimino groups has been extended to compounds which produce from methyl to hexyl iodide on treatment with hydriodic acid. An apparatus is described for the decomposition and collection of the alkyl iodides, followed by gas Chromatographic separation and determination on the 0.1 milliequivalent scale. Single compounds and mixtures containing both alkoxyl and alkimino groups have been successfully analyzed.

Catalytic spectrophotometric determination of iodide in pharmaceutical preparations and edible salt.

Abstract: The catalytic effect of iodide on the oxidation of four dyes: viz. variamine blue (VB), methylene blue (MB), rhodamine B (RB), and malachite green (MG) with different oxidizing agents was investigated for the kinetic spectrophotometric determination of iodide. The above catalyzed reactions were monitored spectrophotometrically by following the change in dye absorbances at 544, 558, 660, or 617 nm for the VB, RB, MB, or MG catalyzed reactions, respectively. Under optimum conditions, iodide can be determined within the concentration levels 0.064-1.27 µg mL(-1) for VB method, 3.20-9.54 µg mL(-1) for RB method, 5.00-19.00 µg mL(-1) for the MB method, and 6.4-19.0 µg mL(-1) for the MG one, with detection limit reaching 0.004 µg mL(-1) iodide. The reported methods were highly sensitive, selective, and free from most interference. Applying the proposed procedures, trace amounts of iodide in pharmaceutical and edible salt samples were successfully determined without separation or pretreatment steps.